LEA5828
Answered

Bonjour, pouvez vous m'aider ?
Résoudre :
1. 3.x - 6 = 0.
2. 7 - 8x = 0
3. 2+x=0
4.-12x + 14 = 0​

Sagot :

Bonjour,

3x - 6 = 0

3x = 0 + 6

3x = 6

x = 6/3 = 2

7 - 8x = 0

- 8x = - 7

x = -7/-8 = 7/8

2 + x = 0

x = 0 - 2

x = -2

-12x + 14 = 0

-12x = 0 - 14

-12x = -14

x = -14/-12 = 14/12 = 7/6.